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DeepSeek V4.1 Flash 1017 vs GLM 5.3

At a glance

DeepSeek's October 2026 checkpoint of the V4.1 Flash workhorse, refreshed for stronger agentic coding with shorter, faster answers.

1.0M ctx$0.15/$0.60 per M

Z.ai's large-scale reasoning flagship for complex software engineering and long-horizon agent tasks.

1.0M ctx$0.08/$4.80 per M
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper79%
Reasoning & Knowledge
Graduate Science—Factual Recall—
Math
Competition Math—
Reasoning
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch AI·OpenRouter· as of 2026-10-02
Reasoning & Knowledge
Graduate Science90.9%Factual Recall41.0%
Math
Competition Math91.1%
Specs
1.0M
Context
256K
Max output
Oct 2026
Released
1.0M
Context
256K
Max output
Aug 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$0.15/M tokens
Output88%$0.60/M tokens
Cache read96%$0.003/M tokens
Live pricing, shown before you run
Input47%$0.08/M tokens
Output$4.80/M tokens
Cache read$0.08/M tokens
Chat with DeepSeek V4.1 Flash 1017Go to model
Chat with GLM 5.3Go to model
Frequently Asked Questions: DeepSeek V4.1 Flash 1017 vs GLM 5.3▼

Which is better, DeepSeek V4.1 Flash 1017 or GLM 5.3?

▼

Both DeepSeek V4.1 Flash 1017 and GLM 5.3 are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, DeepSeek V4.1 Flash 1017 or GLM 5.3?

▼

DeepSeek V4.1 Flash 1017 has a lower blended cost. DeepSeek V4.1 Flash 1017: $0.15 input / $0.60 output. GLM 5.3: $0.08 input / $4.80 output.

Which has a larger context window, DeepSeek V4.1 Flash 1017 or GLM 5.3?

▼

DeepSeek V4.1 Flash 1017 has a larger context window: DeepSeek V4.1 Flash 1017 supports 1M tokens vs GLM 5.3 at 1M tokens.

Do both DeepSeek V4.1 Flash 1017 and GLM 5.3 support vision?

▼

DeepSeek V4.1 Flash 1017 supports vision/image input, but GLM 5.3 does not.

What are the key differences between DeepSeek V4.1 Flash 1017 and GLM 5.3?

▼

Key differences: only DeepSeek V4.1 Flash 1017 supports vision input. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both DeepSeek V4.1 Flash 1017 and GLM 5.3 for free on idapt.app to see which performs better for your specific needs.

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